Making Complex Measurements

Making Stimulus Response Measurements

11.The knob or the data entry keys can be used to change the N dB value from 3 dB to 60 dB to measure the 60 dB bandwidth of the filter. See Figure 2-7.

Figure 2-7 N dB Bandwidth Measurement at –60 dB

12.Press N dB Points (Off) to turn the measurement off.

Measuring Stop Band Attenuation Using Log Sweep

When measuring filter characteristics, it is useful to look at the stimulus response over a wide frequency range. Setting the analyzer x-axis (frequency) to display logarithmically provides this function.

Example:

Measure the stop band attenuation of a 10 MHz low pass filter.

1.To measure the response of a low pass filter, connect the equipment as shown in Figure 2-8. This example uses a 10 MHz low pass filter.

Chapter 2

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Agilent Technologies E7401A, E7405A Measuring Stop Band Attenuation Using Log Sweep, N dB Bandwidth Measurement at -60 dB

E7402A, E7405A, E7404A, E7401A, E7403A specifications

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